# cirÂ·cle

## Related Articles

- cirÂ·cumÂ·ferÂ·ence. // American Heritage Student Science Dictionary;2009, p70
A definition of the term "circumference" is presented. It refers to the boundary line of a circle or the boundary line of a figure, area, or object. Circumference is the length of such a boundary.

- arc. // American Heritage Student Science Dictionary;2009, p20
A definition of the term "arc" is presented. It refers to a segment of a circle.

- CIRCUMSCRIBED SHAPES ARE ENLARGED: IS THIS A VARIATION OF THE DELBOEUF ILLUSION? Jaeger, Ted // Perceptual & Motor Skills;Jun2007 Part2, Vol. 104 Issue 3, p1116
Pairs of complex shapes, for example, two golf holes or two hands making a peace sign, were printed on cards with one of the two shapes surrounded by a circle. 20 participants judged the size of the unenclosed shapes relative to the size of the enclosed ones. For 12 pairs in which there were...

- Circle Numbers for Star Discs. Richter, W.-D. // ISRN Geometry;2011, Special section p1
The notion of a generalized circle number which has recently been discussed for l2,p-circles and llipses will be extended here for star bodies and a class of unbounded star discs.

- AREA, DIAGONALS, AND CIRCUMFERENCE OF A CYCLIC QUADRILATERAL. Ayoub, Ayoub B. // Mathematics & Computer Education;Winter2006, Vol. 40 Issue 1, p58
This article shows that the three quadrilaterals can be inscribed in the same circle. It also aims to calculate the lengths of their diagonals and the radius of their circumcircle. Area of a cyclic quadrilateral is considered in this article. It tackles reordering the sides of a cyclic...

- semicircular. // Taber's Cyclopedic Medical Dictionary;2005, p1969
A definition of the term "semicircular" is presented. It depicts the form of a half circle.

- cone. // American Heritage Student Science Dictionary;2009, p79
A description of cone is given. A cone is known as a three-dimensional surface or solid object in which the base is a circle and the sides narrow to form a point. The surface of a cone is formed mathematically by moving a line that passes through a fixed point (the vertex) along a circle.

- ansiform. // Taber's Cyclopedic Medical Dictionary;2005, p128
A definition of the term "ansiform" is presented. Ansiform means shaped like a loop. The term originated from the words "ansa" and "forma" which means a handle and shape, respectively. The definition is from the "Taber's Cyclopedic Medical Dictionary," published by F. A. Davis Co. The...

- segÂ·ment. // American Heritage Student Science Dictionary;2009, p306
Several definitions of the term "segment" are presented. Segment is the portion of a line between any two of its points. It can also refer to the region bounded by an arc of a circle and the chord that connects the endpoints of the arc. Segment is also the portion of a sphere included between a...